package com.dgut.lotterySystem.common.utils;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.util.CollectionUtils;
import org.springframework.util.StringUtils;

import java.util.Collection;
import java.util.concurrent.TimeUnit;

@Configuration
public class RedisUtil {

    @Autowired
    private StringRedisTemplate stringRedisTemplate;

    private static final Logger logger= LoggerFactory.getLogger(RedisUtil.class);

    /**
     * 设置键值对
     * @param key
     * @param value
     * @return
     */
    public boolean set(String key,String value){
        try{
            stringRedisTemplate.opsForValue().set(key,value);
            return true;
        }catch (Exception e){
            logger.error("RedisUtil error,set({},{})",key,value,e);
            return false;
        }
    }

    /**
     * 设置过期时间的键值对
     * @param key
     * @param value
     * @param time
     * @return
     */
    public boolean set(String key,String value,Long time){
        try{
            stringRedisTemplate.opsForValue().set(key,value,time, TimeUnit.SECONDS);
            return true;
        }catch (Exception e){
            logger.error("RedisUtil error,set({},{},{})",key,value,time,e);
            return false;
        }
    }

    /**
     * 获取value
     * @param key
     * @return
     */
    public String get(String key){
        try{
            return StringUtils.hasText(key)?stringRedisTemplate.opsForValue().get(key):null;
        }catch (Exception e){
            logger.error("RedisUtil error,get({})",key,e);
            return null;
        }
    }

    /**
     * 删除缓存
     * @param key
     * @return
     */
    public boolean del(String... key){
        try{
            if(null!=key && key.length>0){
                if(key.length==1){
                    stringRedisTemplate.delete(key[0]);
                }else{
                    stringRedisTemplate.delete((Collection<String>) CollectionUtils.arrayToList(key));
                }
            }
            return true;
        }catch(Exception e){
            logger.error("RedisUtil error,del({})",key,e);
            return false;
        }
    }

    /**
     * 根据key判断是否存在键值对
     * @param key
     * @return
     */
    public boolean hasKey(String key){
        try{
            return StringUtils.hasText(key)?stringRedisTemplate.hasKey(key) :false;
        }catch(Exception e){
            logger.error("RedisUtil error,hasKey({})",key,e);
            return false;
        }

    }
}
